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半职业女性篮球运动员的神经肌肉功能而非技术表现受一天中不同时间的影响。

Neuromuscular but Not Technical Performance is Affected by Time-of-Day in Semiprofessional, Female Basketball Players.

作者信息

Gaos Sofía, Sánchez-Jorge Sandra, Muñoz Alejandro, Vicente-Campos Davinia, Acebes-Sánchez Jorge, Esquius Laura, Scanlan Aaron T, López-Samanes Álvaro

机构信息

Universidad Francisco de Vitoria.

Universitat Oberta de Catalunya.

出版信息

Res Q Exerc Sport. 2024 Jun;95(2):499-508. doi: 10.1080/02701367.2023.2265447. Epub 2023 Oct 19.

Abstract

: The aim of this study was to determine whether variations in technical and neuromuscular performance occur across different times of the day in basketball players. : Twenty semiprofessional, female basketball players (23 ± 4 years) competing in a second-division national basketball competition completed separate testing batteries in the morning (08:30) and in the afternoon (17:30) in a randomized counterbalanced order. Testing sessions consisted of a free-throw accuracy test to assess technical performance, as well as flexibility (ankle dorsiflexion range-of-motion test), dynamic balance (modified star excursion balance test), vertical jump height (squat jump, countermovement jump with and without arm swing), strength (isometric handgrip), change-of-direction speed (V-cut test), and linear speed (20-m sprint) tests to assess neuromuscular performance. Mechanism variables were also obtained including tympanic temperature, urinary specific gravity, and rating of perceived exertion at each session. : Squat jump height (6.7%;  = .001; effect size (ES) = 0.33), countermovement jump height with (4.1%;  = .018; ES = 0.27) and without arm swing (5.9%;  = .007; ES = 0.30), and 20-m sprint time (-1.4%;  = .015; ES = -0.32) were significantly superior in the afternoon compared to morning. Tympanic temperature was significantly higher in the afternoon than morning (1.4%;  < .001; ES = 1.31). In contrast, no significant differences between timepoints were evident for all remaining variables ( > .05; ES = -0.33 to 0.16). : Some neuromuscular variables exhibited a time-of-day effect with better jump and sprint performance in the afternoon compared to morning in semiprofessional, female basketball players.

摘要

本研究的目的是确定篮球运动员在一天中的不同时间技术和神经肌肉表现是否会发生变化。20名参加国家二级篮球比赛的半职业女性篮球运动员(23±4岁),以随机平衡的顺序在上午(08:30)和下午(17:30)完成了不同的测试项目。测试环节包括罚球准确性测试以评估技术表现,以及灵活性测试(踝关节背屈活动范围测试)、动态平衡测试(改良星标偏移平衡测试)、垂直跳跃高度测试(深蹲跳、有无摆臂的反向运动跳)、力量测试(等长握力测试)、变向速度测试(V字切入测试)和直线速度测试(20米冲刺测试)以评估神经肌肉表现。还获取了各测试环节的机制变量,包括鼓膜温度、尿比重和主观用力程度评级。与上午相比,下午的深蹲跳高度(6.7%;P = 0.001;效应量(ES)= 0.33)、有摆臂的反向运动跳高度(4.1%;P = 0.018;ES = 0.27)和无摆臂的反向运动跳高度(5.9%;P = 0.007;ES = 0.30)以及20米冲刺时间(-1.4%;P = 0.015;ES = -0.32)均显著更优。下午的鼓膜温度显著高于上午(1.4%;P < 0.001;ES = 1.31)。相比之下,所有其余变量在不同时间点之间均无显著差异(P > 0.05;ES = -0.33至0.16)。在半职业女性篮球运动员中,一些神经肌肉变量呈现出日时间效应,下午的跳跃和冲刺表现优于上午。

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